CA2372621C - Vehicle axle - Google Patents
Vehicle axle Download PDFInfo
- Publication number
- CA2372621C CA2372621C CA002372621A CA2372621A CA2372621C CA 2372621 C CA2372621 C CA 2372621C CA 002372621 A CA002372621 A CA 002372621A CA 2372621 A CA2372621 A CA 2372621A CA 2372621 C CA2372621 C CA 2372621C
- Authority
- CA
- Canada
- Prior art keywords
- pivot
- support
- axle
- vehicle
- vehicle axle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D17/00—Means on vehicles for adjusting camber, castor, or toe-in
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D13/00—Steering specially adapted for trailers
- B62D13/06—Steering specially adapted for trailers for backing a normally drawn trailer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/30—Rigid axle suspensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/40—Indexing codes relating to the wheels in the suspensions
- B60G2200/464—Caster angle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/15—Fluid spring
- B60G2202/152—Pneumatic spring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/14—Mounting of suspension arms
- B60G2204/149—Mounting of rigid axle on wheel knuckle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/43—Fittings, brackets or knuckles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/50—Constructional features of wheel supports or knuckles, e.g. steering knuckles, spindle attachments
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
The invention relates to vehicle axles for fixed lorries and trailer vehicles having a supplementary axle system that is self-steering. Self-steering axle systems are known where the wheels are located on a pivotally mounted axle allowing the wheels to turn freely to follow the steered wheels. Known systems are adequate when the vehicle is moving in a forward direction, but have serious operational difficulties when the vehicle is being reversed.
The object of the invention is to avoid said known difficulties, and the objective is met by a vehicle axle comprising a stub axle assembly mounted by a first pivot on a support, and the support being mounted on a second pivot on an axle beam, said support being provided with a means of causing it to pivot between two operational positions, and to hold the support in a required operational position, and said first and second pivots being disposed at a convergent angle whereby to set the first pivot at a first castor angle in one operational position, and at an equal and opposite second castor angle in the other operational position.
The object of the invention is to avoid said known difficulties, and the objective is met by a vehicle axle comprising a stub axle assembly mounted by a first pivot on a support, and the support being mounted on a second pivot on an axle beam, said support being provided with a means of causing it to pivot between two operational positions, and to hold the support in a required operational position, and said first and second pivots being disposed at a convergent angle whereby to set the first pivot at a first castor angle in one operational position, and at an equal and opposite second castor angle in the other operational position.
Description
VEHICLE AXLE
This invention relates to vehicle axles, and is particularly concerned with fixed lorries and trailer vehicles provided with a supplementary suspension and axle system that is self-steering.
It is already known to provide a vehicle with a self-steering axle system, where the wheels are located on a pivotally mounted axle, such that the wheels can freely turn to follow the steered wheels of the vehicle as the vehicle, for example, progresses round a corner or bend in a road.
Such self-steering axle assemblies provide notable advantages over fixed axle systems, by avoiding excessive tyre wear or damage to tyres caused by a transverse shear load appiied to a tyre as it slides or bounces whilst progressing round a corner or bend.
Existing constructions of self-steering axles are quite adequate for all occasions (save perhaps for high vehicle speeds) whilst the vehicle is travelling in a forward direction, but suffer serious operational problems when the vehicle is required to be reversed, so much so that self-steering axles are frequently provided with a means of locking the axle against pivoting, when a reverse movement is needed, but with attendant wear on the tyres of the wheels on the self-steering axle.
The cause of this stems from the setting of pivot for the axle at an appreciable castor angle, to provide a line of action that projects from the axis of pivot through the road wheel centre and to a point on the tyre surface in advance of the tyre road contact. By providing the axle with an appreciable amount of castor angle, there is the substantial guarantee that the road wheels of the self-steering axle will hold in a straight line when the vehicle is travelling in a forward direction and the self-steering axle will follow the steered axle when the vehicle is travelling in a forward direction around a corner or bend.
The object of the present invention is to provide a means of eliminating those operational problems attendant to known supplementary suspension and axle systems when the vehicle is being reversed.
This invention relates to vehicle axles, and is particularly concerned with fixed lorries and trailer vehicles provided with a supplementary suspension and axle system that is self-steering.
It is already known to provide a vehicle with a self-steering axle system, where the wheels are located on a pivotally mounted axle, such that the wheels can freely turn to follow the steered wheels of the vehicle as the vehicle, for example, progresses round a corner or bend in a road.
Such self-steering axle assemblies provide notable advantages over fixed axle systems, by avoiding excessive tyre wear or damage to tyres caused by a transverse shear load appiied to a tyre as it slides or bounces whilst progressing round a corner or bend.
Existing constructions of self-steering axles are quite adequate for all occasions (save perhaps for high vehicle speeds) whilst the vehicle is travelling in a forward direction, but suffer serious operational problems when the vehicle is required to be reversed, so much so that self-steering axles are frequently provided with a means of locking the axle against pivoting, when a reverse movement is needed, but with attendant wear on the tyres of the wheels on the self-steering axle.
The cause of this stems from the setting of pivot for the axle at an appreciable castor angle, to provide a line of action that projects from the axis of pivot through the road wheel centre and to a point on the tyre surface in advance of the tyre road contact. By providing the axle with an appreciable amount of castor angle, there is the substantial guarantee that the road wheels of the self-steering axle will hold in a straight line when the vehicle is travelling in a forward direction and the self-steering axle will follow the steered axle when the vehicle is travelling in a forward direction around a corner or bend.
The object of the present invention is to provide a means of eliminating those operational problems attendant to known supplementary suspension and axle systems when the vehicle is being reversed.
According to the present invention, there is provided a vehicle axle for a vehicle,comprising a stub axle assembly mounted by a first pivot on a support, and the support being mounted on a second pivot on an axle beam, said support being provided with a means of causing it to pivot between two operational positions, and to hold the support in a required operational position, and said first and second pivots being disposed at a convergent angle whereby to set the first pivot at a first castor angle with respect to the second pivot in one of the operational positions, and at a second castor angle equal and opposite to the first castor angle, with respect to the second pivot, in the other operational position.
Preferably, the particular means of causing the support to pivot and to hold it in its required operational position is not critical, but can conveniently be chosen to suit the power supply on the vehicle. Thus with vehicles with a compressed air system for such as the brakes, two air springs may be provided, one to either side of the support. With one air spring disconnected, the other can be activated to cause the support to pivot, and lock it in its required position. With vehicles having hydraulic systems, hydraulic piston and cylinders can be provided, single or double acting, to cause the support to pivot and lock it in its required position.
The invention will now be described briefly with reference to the accompanying drawings in which:
Figure 1 is a perspective view of a vehicle axle according to the invention;
set for forward travel;
Figure 2 corresponds to Figure 1 but shows the axle set for reverse travel;
Figures 3 and 4 are front elevations respectively of Figures 1 and 2;
Figures 5 and 6 are plan views respectively of Figures 3 and 4;
Figure 7 is rear elevation of Figure 1 with a wheel and tyre fitted in place;
and Figures 8 and 9 are schematic representations of the axle systems set respectively for forward and reverse travel.
In the drawings, a stub axle 1 for a supplementary suspension and axle system has an attachment plate 2 to which a vehicle wheel (not shown) may be directly or indirectly attached, the 2a axle 1 being secured to a first pivot 3 in bearings on a support 4 such that the axle can pivot freely about the support. The support may be of unitary construction, but conveniently it is formed by two cast, forged or machined components 5, 6 suitably secured together, the component 6 being formed with bearings for a second pivot 7 attaching the support to the vehicle frame or to an axle beam 8.
The first and second pivots 3, 7 whilst lying in the same plane are angularly disposed with respect to each other at an angle that is downwardly convergent. It is also desirable as is indicated in Figure 7 that the angles of inclination 11 and 12 of the pivots 3 and 7 respectively are such that they are as closely coincident with each other and with the point of ground contact 13 ~ of a tyre 14 on a wheel on the stub axle 1, as is practicable. This minimises actuating and locking forces transmitted through the tyre.
To each side of the support 4 is an attachment 9 for an air spring 10 whereby to cause the support arm to pivot from its position as shown in Figures 1, 3, 5 and 8 to its position as shown in Figures 2, 4, 6 and 9, and to lock the support in the one or the other of its operational positions.
As is indicated in Figure 8, and when the support is in its position for a forward movement of the vehicle, the pivot 3 for the axle is provided with a positive castor angle to provide a line of action through the vehicle wheel centre to a point on the wheel periphery in advance of the point of road contact in the forward direction of travel, and consequently there is the substantial guarantee that the self-steering axle wheels will follow the steered axle wheels during normal forward travel in both a straight line, and when progressing around a corner or bend.
When the vehicle needs to be reversed, the air springs 10 can be operated to pivot the support 4 about the pivot 7 to its position shown in Figures 2, 4, 6 and 9, where again the support is locked in position. As is indicated by Figure 9, the pivot 3 for the axle is provided with a negative castor angle, again to provide a line of action through the vehicle wheel centre to a point on the wheel periphery in advance of the point of road contact in the reverse direction of travel, and consequently there is the substantial guarantee that the self-steering axle wheels will follow the steered axle wheels during normal reverse travel of the vehicle.
The positive and negative castor angles should be greater than 3 , and preferably at or about 6 relative to the vertical plane containing the axle centre and the point of ground contact by the wheel.
Although not illustrated, it may be advisable to provide a means of locking the axle 1 against pivoting with respect to the support 4, when high speed forward travel is intended.
Preferably, the particular means of causing the support to pivot and to hold it in its required operational position is not critical, but can conveniently be chosen to suit the power supply on the vehicle. Thus with vehicles with a compressed air system for such as the brakes, two air springs may be provided, one to either side of the support. With one air spring disconnected, the other can be activated to cause the support to pivot, and lock it in its required position. With vehicles having hydraulic systems, hydraulic piston and cylinders can be provided, single or double acting, to cause the support to pivot and lock it in its required position.
The invention will now be described briefly with reference to the accompanying drawings in which:
Figure 1 is a perspective view of a vehicle axle according to the invention;
set for forward travel;
Figure 2 corresponds to Figure 1 but shows the axle set for reverse travel;
Figures 3 and 4 are front elevations respectively of Figures 1 and 2;
Figures 5 and 6 are plan views respectively of Figures 3 and 4;
Figure 7 is rear elevation of Figure 1 with a wheel and tyre fitted in place;
and Figures 8 and 9 are schematic representations of the axle systems set respectively for forward and reverse travel.
In the drawings, a stub axle 1 for a supplementary suspension and axle system has an attachment plate 2 to which a vehicle wheel (not shown) may be directly or indirectly attached, the 2a axle 1 being secured to a first pivot 3 in bearings on a support 4 such that the axle can pivot freely about the support. The support may be of unitary construction, but conveniently it is formed by two cast, forged or machined components 5, 6 suitably secured together, the component 6 being formed with bearings for a second pivot 7 attaching the support to the vehicle frame or to an axle beam 8.
The first and second pivots 3, 7 whilst lying in the same plane are angularly disposed with respect to each other at an angle that is downwardly convergent. It is also desirable as is indicated in Figure 7 that the angles of inclination 11 and 12 of the pivots 3 and 7 respectively are such that they are as closely coincident with each other and with the point of ground contact 13 ~ of a tyre 14 on a wheel on the stub axle 1, as is practicable. This minimises actuating and locking forces transmitted through the tyre.
To each side of the support 4 is an attachment 9 for an air spring 10 whereby to cause the support arm to pivot from its position as shown in Figures 1, 3, 5 and 8 to its position as shown in Figures 2, 4, 6 and 9, and to lock the support in the one or the other of its operational positions.
As is indicated in Figure 8, and when the support is in its position for a forward movement of the vehicle, the pivot 3 for the axle is provided with a positive castor angle to provide a line of action through the vehicle wheel centre to a point on the wheel periphery in advance of the point of road contact in the forward direction of travel, and consequently there is the substantial guarantee that the self-steering axle wheels will follow the steered axle wheels during normal forward travel in both a straight line, and when progressing around a corner or bend.
When the vehicle needs to be reversed, the air springs 10 can be operated to pivot the support 4 about the pivot 7 to its position shown in Figures 2, 4, 6 and 9, where again the support is locked in position. As is indicated by Figure 9, the pivot 3 for the axle is provided with a negative castor angle, again to provide a line of action through the vehicle wheel centre to a point on the wheel periphery in advance of the point of road contact in the reverse direction of travel, and consequently there is the substantial guarantee that the self-steering axle wheels will follow the steered axle wheels during normal reverse travel of the vehicle.
The positive and negative castor angles should be greater than 3 , and preferably at or about 6 relative to the vertical plane containing the axle centre and the point of ground contact by the wheel.
Although not illustrated, it may be advisable to provide a means of locking the axle 1 against pivoting with respect to the support 4, when high speed forward travel is intended.
Claims (9)
1. A vehicle axle for a vehicle, comprising a stub axle assembly mounted by a first pivot on a support, and the support being mounted on a second pivot on an axle beam, said support being provided with a means of causing it to pivot between two operational positions, and to hold the support in a required operational position, and said first and second pivots being disposed at a convergent angle whereby to set the first pivot at a first castor angle with respect to the second pivot in one of the operational positions, and at a second castor angle equal and opposite to the first castor angle, with respect to the second pivot, in the other operational position.
2. A vehicle axle as in claim 1, wherein the means of causing the support to pivot and to hold it in its required operational position is a hydraulically operated means.
3. A vehicle axle as in claim 1, wherein the means of causing the support to pivot and to hold it in its required operational position is a means operated by compressed air.
4. A vehicle axle as in claim 2 or 3, wherein two air springs are provided, one to either side of the support.
5. A vehicle axle as in claim 2 or 3, wherein one air spring is deactivatable and the other air spring activatable to cause the support to pivot and lock it in its required position.
6. A vehicle axis as in claim 2 or 3, wherein at least one hydraulic piston and cylinder is provided to pivot the support and lock it in its required position.
7. A vehicle axle as in claim 6, wherein two single acting piston and cylinders are provided, one being deactivatable and the other activatable to cause the support to pivot and lock it in its required position.
8. A vehicle axle as in claim 6, wherein the or each hydraulic piston and cylinder is double acting, and oppositely activatable to cause the support to pivot and lock it in its required position.
9. A vehicle axle as in any one of claims 1 to 8, wherein the first and second pivots in a transverse direction have angles of inclination that substantially coincident with each other and with the point of ground contact of a wheel on the stub axle assembly, the transverse direction, in relation to the vehicle, being a plane in which the vehicle axle lies.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0106331.2 | 2001-03-15 | ||
| GBGB0106331.2A GB0106331D0 (en) | 2001-03-15 | 2001-03-15 | Vehicle axle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2372621A1 CA2372621A1 (en) | 2002-09-15 |
| CA2372621C true CA2372621C (en) | 2008-08-05 |
Family
ID=9910688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002372621A Expired - Fee Related CA2372621C (en) | 2001-03-15 | 2002-02-21 | Vehicle axle |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US6776425B2 (en) |
| CA (1) | CA2372621C (en) |
| DE (1) | DE10210556B4 (en) |
| FR (1) | FR2822123B1 (en) |
| GB (2) | GB0106331D0 (en) |
| IT (1) | ITMI20020519A1 (en) |
| MX (1) | MXPA02002597A (en) |
| NZ (1) | NZ517526A (en) |
| TR (1) | TR200200661A2 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7445220B2 (en) * | 2004-02-06 | 2008-11-04 | Daimler Trucks North America Llc | Vehicle axle apparatus |
| DE102006016762A1 (en) | 2006-04-10 | 2007-10-31 | GM Global Technology Operations, Inc., Detroit | Steering knuckle for a vehicle |
| FR2916412B1 (en) | 2007-05-23 | 2009-08-21 | Michelin Soc Tech | METHOD FOR BINARY ADJUSTMENT OF THE ANGULAR POSITION OF THE PLAN OF A MOTOR VEHICLE WHEEL |
| US20160031483A1 (en) * | 2013-03-15 | 2016-02-04 | Oliver KUTTNER | Axle mounting system and vehicle |
| BE1021160B1 (en) | 2013-07-02 | 2018-08-02 | Cnh Industrial Belgium Nv | AXLE FOR A VEHICLE WITH STEERING WITH DOUBLE HINGE. |
| DE102017208554A1 (en) * | 2017-05-19 | 2018-11-22 | Bayerische Motoren Werke Aktiengesellschaft | Wheel suspension for an at least slightly actively steerable rear wheel of a two-lane vehicle, axle with a suspension and vehicle with a suspension |
| CN110730744B (en) | 2017-06-21 | 2022-08-12 | 亨德里克森美国有限责任公司 | Steering knuckle of self-steering axle |
| CN112026440A (en) * | 2018-04-27 | 2020-12-04 | 程晓燕 | Use method of wheel frame convenient to mount and dismount |
| US11364757B2 (en) * | 2019-06-28 | 2022-06-21 | Ree Automotive Ltd | Device and method for double-arm suspension and in-wheel steering |
| KR20210066533A (en) * | 2019-11-28 | 2021-06-07 | 현대자동차주식회사 | Adjusting caster angle device for vehicle |
| CN116635291A (en) | 2020-12-16 | 2023-08-22 | 亨德里克森美国有限责任公司 | Knuckle for a self-steering axle/suspension system |
| KR102313267B1 (en) * | 2021-04-14 | 2021-10-14 | 서한산업(주) | Independent steering apparatus |
| US11772442B2 (en) * | 2021-07-23 | 2023-10-03 | Rivian Ip Holdings, Llc | Offset steering axis knuckle system |
Family Cites Families (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2099114A (en) * | 1934-07-12 | 1937-11-16 | Chrysler Corp | Vehicle wheel suspension |
| DE1655636C3 (en) * | 1966-09-29 | 1978-03-09 | Kenneth William Stourbridge Worcester Vigus (Grossbritannien) | Device for changing the caster of an axle of a vehicle |
| DE2546121A1 (en) * | 1975-10-15 | 1977-04-28 | Volkswagenwerk Ag | Tracking control for triple rear axles of trailer - with servo to alter castor angle for reversing |
| US4029337A (en) * | 1976-02-19 | 1977-06-14 | American Motors Corporation | Camber indicating linkage |
| EP0000979B1 (en) * | 1977-08-13 | 1981-09-23 | GKN Group Services Limited | Rigid axle suspension system for a vehicle |
| JPS5515345A (en) * | 1978-07-18 | 1980-02-02 | Tsutomu Kurihara | Positive or reverse automatically altering device of caster for automobile |
| USRE33302E (en) * | 1983-12-20 | 1990-08-21 | Macpherson strut alignment gauge and straightening apparatus | |
| CA1289891C (en) * | 1986-09-18 | 1991-10-01 | Joyce Lynette Reilly | Device to vary camber in closed knuckle for four wheel drive vehicles |
| US4726598A (en) * | 1987-02-25 | 1988-02-23 | David Walters | Apparatus for increasing the vertical travel of auxiliary wheels mounted on a vehicle |
| US4770430A (en) * | 1987-08-11 | 1988-09-13 | Lange Dennis M | Self-steering axle assembly for vehicles |
| DE69012680T2 (en) * | 1989-07-07 | 1995-03-23 | Mazda Motor | Vehicle suspension mounting unit. |
| US5364113A (en) * | 1992-10-23 | 1994-11-15 | Motor Coach Industries | Self-steering axle for vehicles |
| FI945923A (en) * | 1994-04-08 | 1995-10-09 | Toivo Johannes Pitkaenen | Free swinging bike |
| US5620194A (en) * | 1995-06-07 | 1997-04-15 | The Boler Company | Self-steering suspension lockout mechanism |
| DE29602209U1 (en) * | 1996-02-09 | 1996-10-02 | Robert Jung GmbH, 66424 Homburg | Steerable axle for a vehicle |
| DE19637159B4 (en) * | 1996-09-12 | 2004-09-23 | Wolfgang Weiss | Wheel suspension with automatic camber adjustment |
| US5924716A (en) * | 1996-10-23 | 1999-07-20 | Chassis Dynamics, Inc. | Method and apparatus for connecting a towed vehicle to a towing vehicle |
| JP3832841B2 (en) * | 1997-04-10 | 2006-10-11 | 本田技研工業株式会社 | Vehicle suspension system |
| US6007078A (en) * | 1998-03-31 | 1999-12-28 | The Boler Company. | Self-steering, caster adjustable suspension system |
| US6473978B1 (en) * | 1998-06-16 | 2002-11-05 | Schenck Pegasus Corporation | Wheel alignment assembly and method |
| JP3682833B2 (en) * | 1998-10-26 | 2005-08-17 | 日野自動車株式会社 | Rear wheel steering device |
| US6293724B1 (en) * | 1999-10-29 | 2001-09-25 | Northstar Manufacturing Co., Inc. | Adjustable mount for vehicular ball joints |
| US6550797B2 (en) * | 2000-11-22 | 2003-04-22 | Zero Roll Suspension, Llc | Zero roll suspension system |
-
2001
- 2001-03-15 GB GBGB0106331.2A patent/GB0106331D0/en not_active Ceased
-
2002
- 2002-02-20 GB GB0204049A patent/GB2373228B/en not_active Expired - Fee Related
- 2002-02-21 CA CA002372621A patent/CA2372621C/en not_active Expired - Fee Related
- 2002-02-28 NZ NZ517526A patent/NZ517526A/en unknown
- 2002-03-09 DE DE10210556A patent/DE10210556B4/en not_active Expired - Fee Related
- 2002-03-11 MX MXPA02002597A patent/MXPA02002597A/en active IP Right Grant
- 2002-03-12 IT IT2002MI000519A patent/ITMI20020519A1/en unknown
- 2002-03-13 TR TR2002/00661A patent/TR200200661A2/en unknown
- 2002-03-14 US US10/097,775 patent/US6776425B2/en not_active Expired - Fee Related
- 2002-03-15 FR FR0203251A patent/FR2822123B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| GB2373228B (en) | 2004-05-05 |
| FR2822123A1 (en) | 2002-09-20 |
| NZ517526A (en) | 2003-10-31 |
| FR2822123B1 (en) | 2006-11-17 |
| GB0106331D0 (en) | 2001-05-02 |
| MXPA02002597A (en) | 2005-07-13 |
| CA2372621A1 (en) | 2002-09-15 |
| GB2373228A (en) | 2002-09-18 |
| US6776425B2 (en) | 2004-08-17 |
| DE10210556A1 (en) | 2002-10-17 |
| ITMI20020519A0 (en) | 2002-03-12 |
| DE10210556B4 (en) | 2011-01-05 |
| US20020130477A1 (en) | 2002-09-19 |
| ITMI20020519A1 (en) | 2003-09-12 |
| TR200200661A2 (en) | 2002-10-21 |
| GB0204049D0 (en) | 2002-04-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5458359A (en) | Missing link swivel for four-link rigid axle suspensions | |
| US6808035B1 (en) | Tandem rear axle suspensions for trucks and truck-tractors | |
| US6073946A (en) | Trailing arm suspension | |
| CA2372621C (en) | Vehicle axle | |
| EP0822131B1 (en) | Parallelogram lift axle suspension system with a control for axle caster adjustment | |
| US5364113A (en) | Self-steering axle for vehicles | |
| US4770430A (en) | Self-steering axle assembly for vehicles | |
| US9162706B2 (en) | Self-tracking system for the rear axles of trucks | |
| US4792148A (en) | Semi-trailer truck | |
| CA1132162A (en) | Lift axle suspension | |
| JPS6294403A (en) | Suspension system for automobile | |
| KR960015712B1 (en) | Rear wheel steering device for rear wheel steering | |
| US11712938B1 (en) | Pistonless pneumatic dampening and straight centering for a steerable axle of a heavy-duty vehicle | |
| US6942232B1 (en) | Suspension system for a transport vehicle | |
| CN110667703A (en) | Independent suspension axle system for commercial vehicle | |
| US20070262552A1 (en) | Suspension system for a transport vehicle | |
| US5088570A (en) | Steerable rear dual axle system for large trucks | |
| US7997598B2 (en) | Vehicle suspension system | |
| US6719311B2 (en) | Vehicle steering assembly | |
| AU778699B2 (en) | Vehicle axle | |
| US3936072A (en) | Axle lift mechanism | |
| US6299188B1 (en) | Suspension stop for an agricultural vehicle | |
| JP2569934B2 (en) | Rear wheel steering device for trucks | |
| JP2522456B2 (en) | Rear wheel steering device in vehicle | |
| US20120061935A1 (en) | Axle Arrangement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |